 footer {
     height: 124px;
     width: 100%;
     background: url(../images/b1.jpg);
     color: #fff;
     /*设置居中*/
     display: flex;
     text-align: center;
     justify-content: center;
     align-items: center;
 }



 footer p {
     text-align: center;
     line-height: 30px;
     font-size: 14px;
 }